This is a syncronized digital clock using rasberry pi 2 model and relay circuit. The lights will automatically turn off during non working time. It is intended for our offices, production area or anywhere inside the building.
sudo apt-get update
sudo apt-get dist-upgrade
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs
npm install socket.io --save
npm start